Transaction not yet indexed

668PfSVm9yXprmTf8yK2mzntbF1i55Bodr36L9G43LEYRrhKkQuKo9YFG8KwgG3c5G5u2auUgHciSNvhTnUaNt2j

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.